DHS is led by a talented and experienced executive team that is committed to sustaining a high performing health care system that is responsive to the needs of County residents.

DHS Organizational Chart


Christina R. Ghaly, M.D.

Christina R. Ghaly, M.D.
Acting Director


Hal Yee

Hal F. Yee, Jr., M.D., Ph.D.
Chief Medical Officer


Nina Park
Nina J. Park, M.D.
Director, Ambulatory Care Network
Mark Ghaly
Mark Ghaly, M.D.
Director, Community Health & Integrated Programs

Gerardo Pinedo
Gerardo Pinedo, J.D.
Biography / Organization Chart
Director, Strategic Operations
Health Information Management Division
Capital Projects Division
Facilities Management Division
Communications, Commissions, Workplace Programs
Board Relations and State/Federal Legislative Affairs
Michael Owens
Michael Owens, M.D.
Director, Managed Care Services

Arun Patel
Arun Patel, M.D., J.D., M.B.E.
Director, Quality, Patient Safety and Risk Management

Susan Currin
Susan Currin, RN
Chief Nursing Officer and Director, Office of Nursing Affairs

NA Male
Allan Wecker
Chief Financial Officer


Pamela Griffith, M.B.A., RN, FACHE
Interim Chief Information Officer
Elizabeth Jacobi

Elizabeth Jacobi, J.D.
Director, Human Resources